Sphingidae 
Syn. victoria Grote. 
The head, thorax and abdomen on the upper side are preva¬ 
lently pale olive-green, the fifth and the three anal segments of 
the abdomen being darker green. The fore wings are pale green 
with an oblique brownish median band, and a triangular paler 
brownish spot at the apex. There is a small black discal dot at 
the end of the cell. The hind wings are deep orange-yellow, 
margined with black. On the under side the wings are olive- 
green, darker at the base. The hind wings have a waved 
whitish band about their middle on the under side. The legs 
are greenish-white. 
This species is found from Oregon to northern California, and 
eastward to Utah and Montana. 
Genus EUPROSERPINUS Grote & Robinson 
This genus is discriminated by Rothschild & Jordan from 
Proserpinus by the fact that the antenna is more abruptly hooked 
and slenderer at its extremity than in Proserpinus , and by the 
absence of the pulvillus and paronychium, which are found in 
Proserpinus. Two species belong to the genus, both having 
white hind wings margined with darker color and the under side 
of the pectus and the wings also white. 
(1) Euproserpinus phaeton Grote & Robinson, Plate II, 
Fig. 9, $. (The Phaeton Sphinx.) 
Syn. errato Boisduval. 
The head and thorax above are gray, the abdomen blackish. 
The preterminal segment has yellow lateral tufts. The anal tuft 
is black. The fore wings above are of the same color as the 
thorax. The hind wings are yellowish-white with a broad black 
marginal band. Expanse 32 mm. 
The habitat of this species is southern California. 
(2) Euproserpinus euterpe Edwards. (The Euterpe 
Sphinx.) 
This species, which is only known to the writer through an 
examination of the type, is discriminated from the preceding by 
the absence of pale tufts on the side of the abdomen and the fact 
that the marginal band of the hind wing is bowed inwardly and 
not straight as in E. Phaeton. 
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